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e Fat an angle to the Ar cos 8. positive, so the sign of Wis force and the displacement. 1 of 1 What is the work W., done on the box by the normal force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) W₁ = 0 J Submit Correct Because there is no component of the normal force in the direction of motion, the normal ford Part C Previous Answers What is the work WT done by the tension force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) WT= Submit 195| ΑΣΦΑ Previous Answers J * Incorrect; Try Again; 5 attempts remaining Since the force of friction acts to oppose the motion of the box, does it add energy to the box force does negative work on the system.

e Fat an angle to the Ar cos 8. positive, so the sign of Wis force and the displacement. 1 of 1 What is the work W., done on the box by the normal force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) W₁ = 0 J Submit Correct Because there is no component of the normal force in the direction of motion, the normal ford Part C Previous Answers What is the work WT done by the tension force? Express your answers in joules to two significant figures. ▸ View Available Hint(s) WT= Submit 195| ΑΣΦΑ Previous Answers J * Incorrect; Try Again; 5 attempts remaining Since the force of friction acts to oppose the motion of the box, does it add energy to the box force does negative work on the system.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Part C

A box with weight of magnitude FG = 2.00 N is lowered by a rope down a smooth plane that is inclined at an angle = 30.0° above the horizontal, as shown in (Figure 1) at left. The normal force acting on the box has a magnitude n = 1.73 N, the tension force is 1.00 N, and the displacement Ar of the box is 1.80 m down the inclined plane.
Transcribed Image Text:A box with weight of magnitude FG = 2.00 N is lowered by a rope down a smooth plane that is inclined at an angle = 30.0° above the horizontal, as shown in (Figure 1) at left. The normal force acting on the box has a magnitude n = 1.73 N, the tension force is 1.00 N, and the displacement Ar of the box is 1.80 m down the inclined plane.
Learning Goal: Recall that the work W done by a constant force at an angle to the displacement Aris W = F · Ar = FAr cos 0. The vector magnitudes F and Ar are always positive, so the sign of Wis determined entirely by the angle between the force and the displacement. Figure → AP 1 of 1 Part B n What is the work W₁ done on the box by the normal force? Express your answers in joules to two significant figures. View Available Hint(s) W₁ = 0 J n Submit Correct Because there is no component of the normal force in the direction of motion, the normal force does no work on the box. Part C Previous Answers What is the work WT done by the tension force? Express your answers in joules to two significant figures. View Available Hint(s) WT = Submit VE ΑΣΦ Previous Answers ? J X Incorrect; Try Again; 5 attempts remaining Since the force of friction acts to oppose the motion of the box, does it add energy to the box or take energy away from the box? When a force acts to remove energy from a system, that force does negative work on the system. <
Transcribed Image Text:Learning Goal: Recall that the work W done by a constant force at an angle to the displacement Aris W = F · Ar = FAr cos 0. The vector magnitudes F and Ar are always positive, so the sign of Wis determined entirely by the angle between the force and the displacement. Figure → AP 1 of 1 Part B n What is the work W₁ done on the box by the normal force? Express your answers in joules to two significant figures. View Available Hint(s) W₁ = 0 J n Submit Correct Because there is no component of the normal force in the direction of motion, the normal force does no work on the box. Part C Previous Answers What is the work WT done by the tension force? Express your answers in joules to two significant figures. View Available Hint(s) WT = Submit VE ΑΣΦ Previous Answers ? J X Incorrect; Try Again; 5 attempts remaining Since the force of friction acts to oppose the motion of the box, does it add energy to the box or take energy away from the box? When a force acts to remove energy from a system, that force does negative work on the system. <
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